The age of a rock based on what layer it is in
Explanation:
fossil fuels are made from decayed plants and animals that have been converted to crude oil,coal,natural gas or heavy oils by exposure to heat and pressure
oil is a liquid hydrocarbon that is formed when a rock high in organic carbon is subjected to heat and pressure
<h2>may this answer help you .....</h2>
A little trick i learnt: The atomic number reflects how many electrons there are, and there must be an equal charge. therefore, there are the same amount of protons as there are electrons. so if it has 81 protons, we look for number 81 in the periodic table, Thallium
